Kanagawa, Japan

Kazuhiko Fujiie

This inventor holds 45 USPTO granted patents and 2 published patent applications, primarily in Optical Recording Technology. Top assignee: Sony Corporation. Active years: 1985-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiko Fujiie. Retrieved from https://idiyas.com/inventor/kazuhiko-fujiie

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 45 

% Patents Active = 71.1

Average Co-Inventor Count = 2.4

ph-index = 13

Forward Citations = 703(Granted Patents)


Location History:

  • Tokyo, JP (1985 - 2010)
  • Kanagawa, JP (1998 - 2012)

Company Filing History:


Years Active: 1985-2012

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Areas of Expertise:
Optical Pickup
Magneto-Optical Medium
Laser Emission
Optical Recording
Signal Detection
Data Reproduction
Optical Disc
Photo Detector
Recording Apparatus
Error Detection
Data Storage
45 patents (USPTO):Explore Patents

Title: Kazuhiko Fujiie's Contributions to Optical Innovations

Introduction

Kazuhiko Fujiie, an accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of optical technologies. With an impressive portfolio of 45 patents, his innovative work primarily revolves around laser light emission and optical devices. His recent patents are not only a testament to his creativity but also highlight advancements that benefit various applications in technology.

Latest Patents

Fujiie’s latest patents encompass several groundbreaking inventions. His work on a short-pulse light source explores a method of directing the emission period of a semiconductor laser. The invention involves emitting pulsed light from a semiconductor laser and applying a laser drive voltage generated from a pulse signal. By varying the voltage period corresponding to the drive voltage pulses, Fujiie has effectively innovated the emission of high-output short-pulse beams while simultaneously reducing power consumption. These patents bring forth advancements in laser driving methods and optical devices, contributing to more efficient optical disc apparatuses.

Career Highlights

Kazuhiko Fujiie has spent a significant portion of his career at Sony Corporation, where he has been able to apply his expertise in optical technologies to develop cutting-edge solutions. His patents reflect a keen understanding of semiconductor lasers and their applications in various optical devices. Fujiie's role has solidified his position as a notable figure within the realm of innovations pertaining to optical technology.

Collaborations

Throughout his career, Fujiie has collaborated with other talented individuals, including Ryo Ando and Yasuaki Maeda. These partnerships have enabled the exchange of ideas and fostered an environment of innovation, further enhancing the development of their combined projects within Sony Corporation. Such collaborations are vital in pushing the boundaries of what is possible in optical technologies.

Conclusion

Kazuhiko Fujiie’s work and innovations in the field of optical devices and laser technology reflect a commitment to advancing the industry's capabilities. His recent patents highlight significant progress toward creating efficient and powerful light sources, marking him as an influential inventor in the realm of optics. As he continues to push the envelope of technology, Fujiie's contributions will undoubtedly shape the future of optical innovations.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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